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Chung, San Diego
Hyukjune Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080267288 | METHOD, APPARATUS, AND SYSTEM FOR ENHANCING ROBUSTNESS OF PREDICTIVE VIDEO CODECS USING A SIDE-CHANNEL BASED ON DISTRIBUTED SOURCE CODING TECHNIQUES - A method, apparatus, and system for providing distributed source coding techniques that improve data coding performance, such as video data coding, when channel errors or losses occur. Errors in the reconstruction of the data is eliminated or reduced by sending extra information. Correlation between a predicted sequence and an original sequence can be used to design codebooks and find the cosets required to represent the original image. This information may be sent over another channel, or a secondary channel. | 10-30-2008 |
| 20090003440 | SUB-BAND SCANNING TECHNIQUES FOR ENTROPY CODING OF SUB-BANDS - This disclosure describes techniques useful in the encoding and/or decoding of video data of a video sequence. In general, this disclosure sets forth scanning techniques useful in the context of sub-band coding, which may improve the level of compression that can be achieved by entropy coding following sub-band coding. In one example, a method of encoding video data of a video sequence comprises sub-band encoding the video data to generate a plurality of sub-bands, scanning each of the sub-bands from two-dimensional blocks into one-dimensional vectors based on scan orders defined for each of the sub-bands, and entropy encoding each of the scanned sub-bands. | 01-01-2009 |
| 20090021572 | CONTENT- AND LINK-DEPENDENT CODING ADAPTATION FOR MULTIMEDIA TELEPHONY - This disclosure describes techniques that can facilitate multimedia telephony. In one example, a method for communication of multimedia data comprises determining a first level of throughput associated with multimedia data communication from a first access terminal to a network, determining a second level of throughput associated with multimedia data communication from the network to a second access terminal based on feedback from the second access terminal to the first access terminal via the network, determining a budget associated with communication of a video unit of the multimedia data, and coding the video unit of the multimedia data based on the budget and the first and second levels of throughput. | 01-22-2009 |
| 20090097558 | SCALABLE VIDEO CODING TECHNIQUES FOR SCALABLE BITDEPTHS - This disclosure describes video coding techniques that are executed in a bitdepth-based scalable video coding (SVC) scheme. Base layer video data and enhancement layer video data may be defined at different bitdepths. The techniques of this disclosure concern the coding of enhancement layer video blocks using a unique combination of inter-layer predictive coding modes after determining that inter-layer prediction should be used. In particular, two or more different inter-layer predictive coding modes may be utilized block corresponding to inter base layer blocks, and one of these inter-layer predictive coding modes may also be utilized for blocks corresponding to intra base layer blocks. Syntax information can be generated at the encoder and communicated with the bitstream, so that a decoder can use the proper inter-layer predictive coding mode in the decoding. | 04-16-2009 |
Puiyan Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090073300 | CLOCK MANAGEMENT OF BUS DURING VIEWFINDER MODE IN DIGITAL CAMERA DEVICE - This disclosure describes techniques for managing the clock speed of a bus during viewfinder mode in a digital camera device. The techniques involve determining a frame rate of frames displayed on a viewfinder, determining whether to adjust a clock speed of a bus based at least in part on the determined frame rate, wherein the bus is used to transfer the frames from a camera sensor to the viewfinder, and adjusting the clock speed of the bus upon determining that that the clock speed should be adjusted. The techniques may help ensure that the viewfinder delivers frames at a target frame rate. In addition, in some cases, the techniques may help to reduce power consumption by facilitating clock speed reductions in viewfinder mode. | 03-19-2009 |
Russell Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100268218 | Electrically Tunable Tissue Ablation system and Method - An ablation system which transmits radio frequency (RF) energy for the ablation of biological tissues has a transmission line and an RF antenna disposed at the distal portion of the transmission line. An RF signal generator supplies RF energy to the proximal end of the cable for transmission to the antenna, and an electrically tunable transformer is connected between the signal generator and the antenna. The transformer is tuned based on detection of the reflected power level from the antenna so as to reduce or minimize reflected power, thereby increasing RF energy coupling between the antenna and tissue. | 10-21-2010 |
| 20100268219 | RADIO FREQUENCY BASED ABLATION SYSTEM AND METHOD WITH DIELECTRIC TRANSFORMER - An ablation device which transmits radio frequency (RF) energy for the ablation of biological tissues has elongate inner and outer coaxial conductors extending from a proximal portion to a distal portion. An RF antenna is disposed at the distal portion of the device and transmits RF energy for ablation of a tissue region to be treated. Reflection of energy from the tissue or the ablation point is reduced by providing multiple layers of dielectric media about the antenna, or by providing a gradual transition point from the conductors to the antenna tip, by means of a longitudinally stepped dielectric layer transformer. | 10-21-2010 |
Seong Taek Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100098192 | BIT LOG LIKELIHOOD RATION EVALUATION - A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k | 04-22-2010 |
Stanley Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20080256992 | Two Point Lock for Doors and Windows - A two point lock includes two pivotally mounted security hooks having sliding faces that engage sliding faces of a spring-loaded mishandling pin when the mishandling pin is vertically extended and the security hooks are rotatably retracted. The mishandling pin is vertically retracted when it abuts a jamb. When the mishandling pin is vertically retracted, the sliding faces disengage so that the security hooks can rotate to lock onto a striker on the jamb. Thus, the mishandling pin prevents the security hooks from being slammed into the striker before a door or a window is fully closed. | 10-23-2008 |
| 20080258475 | TWO POINT LOCK FOR DOORS AND WINDOWS - A two point lock includes two pivotally mounted security hooks having sliding faces that engage sliding faces of a spring-loaded mishandling pin when the mishandling pin is vertically extended and the security hooks are rotatably retracted. The mishandling pin is vertically retracted when it abuts a jamb. When the mishandling pin is vertically retracted, the sliding faces disengage so that the security hooks can rotate to lock onto a striker on the jamb. Thus, the mishandling pin prevents the security hooks from being slammed into the striker before a door or a window is fully closed. | 10-23-2008 |
| 20090165509 | Multi Point Door Lock Assembly - A multi point door lock device featuring a casing adapted to operatively engage the communicating components of the door lock. A removably engageable latch module slidably engages with the casing. A latch is reversibly engaged into the latch module with an allen screw and allows for user reversal to accommodate different door installations. The latch module also provides a switch for changing between first and second modes of operation to provide an external day latch function. The switching lever protrudes through the face plate on the side of the door. | 07-02-2009 |
Tia Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090300525 | METHOD AND SYSTEM FOR AUTOMATICALLY UPDATING AVATAR TO INDICATE USER'S STATUS - A cellular or wireless mobile device includes a one or more sensors and a processor configured with software to receive data from the one or more sensors, calendar data and device settings, compare sensor, calendar, device settings data, and an authorization level of a requesting user to avatar selection criteria, and select an avatar based upon the comparison. By correlating sensor data, calendar data and device settings to a user's current status, the avatar selection criteria enables a processor to automatically select an avatar that reflects the user's current status. Others then can be informed of the user's current status by accessing the user's avatar. | 12-03-2009 |
Woo Cheol Chung, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090175323 | Methods and Devices for Wireless Chip-to-Chip Communications - Wireless chip-to-chip communications are methods and devices are disclosed. In an example, a wireless chip-to-chip communication device includes a plurality of chips, each of the plurality of chips having at least one antenna and formed on a multi-layered structure. The multi-layered structure includes first and second absorption layers. The first and second absorption layers are configured to enclose a propagation medium having a given dielectric constant. The plurality of chips are configured to wirelessly communicate with each other via the respective antennas in accordance with a given wireless communication protocol via a direct propagation path within the propagation medium. | 07-09-2009 |